Big brother acts out while I’m breastfeeding

Any tips on keeping my 3 year old busy while I nurse BESIDES TV? In our home, we use TV sparingly and most of the time as a reward.

He has gotten in trouble the last couple of days every time I’m nursing. He doesn’t listen to me when I’m nursing (I’m assuming because he knows I cant do much). He laughs when I tell him to stop and runs away only to come back and do whatever he was doing again. He was spinning with his arms open coming close to hitting the baby while she was eating then he was running to jump on the couch then he climbed up next to me on the couch and almost kicked her in the head “being silly”. My child is very well behaved and kind any other time. I’m blessed beyond belief for both of my kids demeanors. I’m just asking for help in this particular area please.